FTM who has been experiencing the dreaded 4 month sleep regression for about 4 weeks now, and I'm so ready to give up and just let him sleep in our bed😢 He was sleeping 8-9 hours the first stretch before, and now can't go more than 3. He puts himself to sleep every night, so I know he can self soothe. The lack of sleep is seriously killing me both physically and emotionally. This sleep regression started right when I went back to work full-time...